22020131320 has 64 divisors (see below), whose sum is σ = 56894140800. Its totient is φ = 7585879680.

The previous prime is 22020131303. The next prime is 22020131369. The reversal of 22020131320 is 2313102022.

It is a junction number, because it is equal to n+sod(n) for n = 22020131294 and 22020131303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1308634 + ... + 1325353.

It is an arithmetic number, because the mean of its divisors is an integer number (888970950).

Almost surely, 2^22020131320 is an apocalyptic number.

22020131320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22020131320 is an abundant number, since it is smaller than the sum of its proper divisors (34874009480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22020131320 is a wasteful number, since it uses less digits than its factorization.

22020131320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2634028 (or 2634024 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 22020131320 its reverse (2313102022), we get a palindrome (24333233342).

The spelling of 22020131320 in words is "twenty-two billion, twenty million, one hundred thirty-one thousand, three hundred twenty".